Carburetor



M. SNINSKY Oct. 12, 1943.

CARBURETOR Filed Jan. 23, 1942 2 Sheets-Sheet l o ws Oct. 12, 1943.

M. SNINSKY 2,331,809

CARBURETOR Filed Jan. 23, 1942 2 Sheets-Sheet 2 W am.

Patented Oct. 12, 1943 U NIT-E D STATE S PAT E 'Q-FFIC E CARBURETOR' Michael Sninsky, Boston, Pa.

Application January 23, 1942, SerEaI-Na-MLBSS 6 Claims.

Thisinven'tion relates to carburetors, and more particularly to a device 'employedin connection with'a fuel vaporizing unit of the character which will vaporize fuel ofdifferent grades.

The primary object ofthis invention is the provision of a device for receiving gaseous fuel from the vaporizing unit and mix therewith air to provide'a-highly combustible fuel mixture and introtiuce said fuel mixture into an internal combustion engine in controlled amountsand in condition to produce a maximum horse power devel'opmentby the engine with carbon deposit reduced' to a minimum.

With these and'o'th'er'objects inview as will become more apparent as the description proceeds'the invention consists'in certain novel features-of construction, combination and arrangement of'parts as will'be hereinafter more fully described andclaimed.

For a complete understanding of my invention, re'fe-rence'isto be had to the following description and accompanying drawings'in which Figure 1 is a side elevation illustrating a device constructed in accordance with my invention.

Figure-2 is a vertical sectional View illustrating the device:

Figure-3 is a sectional 'view taken 'on-th'e line 3 3 ofFigure 1.

Figure-4 isa sectional view taken "on the line d- -l'of Figure 1.-

Referring in detail-to the drawings, the numeral 5 1 indicates the body of the device which is of elongatedformation and includes companiensections-detachab-ly connected by fasteners 6. The -body= 5- has a bore 7 extending from end to end-thereof: 'Oneend of the body is shaped 'to provide an attachingfiange 8 adaptable to an intake manifold-of an internal combustion engine; Theother end of the body is in the form ofa flange; as shown at 9; to form a base portion for an air filter 10. The latter-named end of the body a-lso has integral therewith a skeleton type abutment H to which a remov-ablecover'platel 2 is secured by'a fastener *i 3.

The opposing faces of the cover plate l2 and base '9'- are provided with annular grooves 14 in which are seated annular filtering elements 15 of foraminous material. Filtering material [6 is also positioned between the filtering elements l5 and-the base 9 and cover plate 12. The air passingthrou'gh the filterin'g 'mateli'al and filtering elements will be relievedof dirt and other foreign matter before entering'the bore 1 of the body 5.

Formed in the body-Fiend spaced from each otherand bisectin the bore 1 are valve seats I! and 18 of spherical shape in which are journaled valve elements Band 20 of spherical'shape to match-the seats and-control -the passage'or'bore l of the body. The valve 'elementshave'formed thereon oppositely disposed pintles 2i journaled in the body and one ofthe pin-tles ofthe valve element llextel'ld'sexteriorly ofth'e body and-is bent angularly to form an arm 22 to Which-a throttle control mechanismmay be pivotally con nected. The valve-xelements lland ZU are tied together for movement unison :ontheir pivots; The tie between the lvalve elements is in' 'the formof a. connecting. link 23; pivoted to the valve elements, as shown at 24. y

By reference touFignrevait' will be seen that the seats of the valve-elementsarecut through one ofthe' Wallsof the body to permitthe connecting link 23 to operate: exteriorly; of the body: A removable cover-plate "25 is secured on the body, by fasteners 25 to-overliethe link 23 and its pivotal connection to the valve elementsto protect them against damage and interference :by other objects, also to close the seats Where they extend through one. wall of the body.

The valve elements l9 and 20 are provided with oppositely-arranged"main ports '21 to be moved into and out of communication-with "the bore *1 for the purpose of controlling the flow of fuel therethrough.

The valve element I20=isprovided with opposed fuel: ports :28 to be m'oved into and out of regise tration with fuel .ports :29 l-formedin fuel chambers 3B. The fuel chambers are-arranged to extend horizontallyin vopposite directions from the valve seat is in the form of substantially cylindrical extensions having their outer ends reduced and internally screw threaded, as shown at'3 l,to which pipes or conduit (not shown) leading, from a vaporizing unit'may beconnected to the fuel chambers.

Located in thefuel chambersare cutoff valves 32;

A fuel passage '33 is formed in the body 5 and leadsfrom one' of the fuel chambers 30 to the seat l'l. A-fuel-passage s t-is formed in the body and leads from the seat H to -the-bor-e 1 between the intake manifold of the engine and the valve element IS. The passage 34 is controlled by a needle valve- 35. The valve element I9 has ports 'Stwhich move into and out "of registration with the passages 33 -and-34 and connect with said passages when the-valve element I9 i in a position of closing the bore! tothe-intake manifold of the engine so that sufficient fuel may be-introduced into the bore 1 between thevalve element and the intake manifold of the engine to sustain the latter operating at idling speed.

An inwardly opening check valve 31 is located in the bore 1 between the valve element 20 and the air filter. Also located in the bore 1 of the body between the check valve 31 and the air filter is a choke valve 38. The choke valve may be operated in any well known manner for regulating the amount of air into the bore 1 under the suction of the engine when starting the latter.

It is to be understood that vaporized fuel is admitted to the fuel chambers 30 from a vaporizing unit (not shown) and which will form the subject matter of a later application for United States patent. Therefore, it will be seen that in operation the vaporized fuel of the fuel chambers 30 will be admitted to the bore 1 in controlled amounts by the valve element 28. Said valve element also regulates the amount of air received through the filter. The gaseous fuel and air mixed together within the valve element are passed therefrom from the portion of the bore 1 lying between the valve elements l9 and 20 and through the valve element l9 to the intake manifold of the engine. The valve element i9 acts to control the amount of fuel mixture, consisting of the gaseous fuel and air, to the engine. Also it will be seen that the valve element l9 when closed or substantially closed, will have its ports 36 in communication with the passages 33 and 34 to admit sufficient gaseous fuel to the engine to sustain the engine at operation at idling speed. The valve elements besides controlling the flow of fuel to the engine also provide mediums of mixing air with the gaseous fuel so that when the mixed fuel enters the engine it will be in a highly combustible condition for the operation of the engine at maximum horse power with a minimum formation of carbon deposits.

From the foregoing description taken in connection with the accompanying drawings it will be seen that the valve element I9 and its seat act as a throttle valve while the valve element 20 and its seat act to control the gaseous fuel into the bore 1 as well as controlling the amount of air to the gaseous fuel.

While I have shown and described the preferred embodiment of my invention, it is to be understood that minor changes in construction, combination and arrangement of parts may be made Without departing from the spirit and scope of the invention as claimed.

Having thus described the invention, what I claim is:

1. In a device of the class described, an elongated body having one end adapted for connection to a fuel intake of an internal combustion engine, said body having a bore extending from end to end thereof, a throttle valve operating in said bore and carried by the body, a fuel chamber on said body adapted for connection to a gaseous fuel source, a second valve in said body for controlling gaseous fuel from the chamber to the bore and atmospheric air to the bore, tie means between said valves for the movement thereof in unison, means whereby said throttle valve may be actuated by a control means, said body having a fuel passage connecting with the bore between the throttle valve and the fuel intake of the engine and with the fuel chamber and controlled by the throttle valve for sustaining the engine operating at idling speed, and a needle valve for the further control of fuel through said passage to the bore.

2. In a device of the class described, an elongated body having a bore extending from end to end thereof, means on one end of said body for adapting the latter to a fuel intake of an internal combustion engine, said body having spaced spherical shaped valve seats bisecting the bore, spherical shaped valve elements, journaled in said body and coacting with the seats in controlling the bore and provided with opposed ports, gaseous fuel chambers on said body and having ports intersecting one of the seats, the valve element of the latter-named seat having ports for controlling the gaseous fuel therein and to the bore and said latter-named valve element acting as a medium for mixing atmospheric air and the gaseous fuel together, and means for operating said valves.

3. In a device of the class described, an elongated body having a bore extending from end to end thereof, means on one end of said body for adapting the latter to a fuel intake of an internal combustion engine, said body having spaced spherical shaped valve seats bisecting the bore, spherical shaped valve elements journaled in said body and coacting with the seats in controlling the bore and provided With opposed ports, gaseous fuel chambers on said body and having ports intersecting one of the seats, the valve element of the latter-named seat having ports for controlling the gaseous fuel therein and to the bore and said latter-named valve element acting as a medium for mixing atmospheric air and the gaseous fuel together, a connecting link pivoted to the valve elements to cause the latter to move in unison, and means for connecting one of said valve elements to an operating medium.

4. In a device of the class described, an elongated body having a bore extending from end to end thereof, means on one end of said body for adapting the latter to a fuel intake of an internal combustion engine, said body having spaced spherical shaped valve seats bisecting the bore, spherical shaped valve elements journaledin said body and coacting with the seats in controlling the bore and provided with opposed ports, gaseous fuel chambers on said body and having ports intersecting one of the seats, the Valve element of the latter-named seat having ports for controlling the gaseous fuel therein and to the bore and said latter-named valve element acting as a medium for mixing atmospheric air and the gaseous fuel together, a connecting link pivoted to the valve elements to cause the latter to move in unison, means for connecting one of said valve elements to an operating medium, and an inwardly opening check valve located in the bore between one of the valve elements and one end of the bore. 7

5. In a device of the class described, an elongated body having a bore extending from end to end thereof, means on one end of said body for'adapting the latter to a fuel intake of an internal combustion engine, said body havingspaced spherical shaped valve seats bisectin-g the bore, spherical shaped Valve elements journaled in said body and coacting with the seats in controlling the bore and provided with opposed and the gaseous fuel together, a connecting link pivoted to the valve elements to cause the latter to move in unison, means for connecting one of said valve elements to an operating medium, an inwardly opening check valve located in the bore between one of the valve elements and one end of the bore, andachoke valve located in the bore between said check valve and one end of the bore.

6. In a device of the class described, an elongated body having a bore extending from end to end thereof, means on one end of said body for adapting the latter to a fuel intake of an internal combustion engine, said body having spaced spherical shaped valve seats bisecting the bore, spherical shaped valve elements journaled in said body and coacting with the seats in controlling the bore and provided with opposed ports, gaseous fuel chambers "on said body and having ports intersecting one of the seats, the valve element of the latter-named seat having ports for controlling thegaseous fuel therein and to the bore and said latter-named valve element acting as medium for mixing atmospheric air and the gaseous fuel together, a connecting link pivoted to the valve elements to cause the latter to move in unison, means for connecting one of said valve elements to an operating medium, an inwardly opening check valve located in the bore between one of the valve elements and one end of the bore,

and a. choke valve located in the bore between said check valve and one end of the bore, said body having a fuel passage connecting with the bore between one of the valve elements and the fuel intake of the engine and connected to one of the fuel chambers, a needle valve for the control of said fuel passage, one of said valve elements having ports for controlling the fuel passage.

MICHAEL SNINSKY. 

